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Taxon: Rhododendron tomentosum Harmaja

Genus: Rhododendron subgenus: Rhododendron section: Rhododendron
Family: Ericaceae subfamily: Ericoideae tribe: Rhodoreae.
Nomen number: 410675
Place of publication: Ann. Bot. Fenn. 27:204. 1990
Name verified on: 12-Sep-2003 by ARS Systematic Botanists. Last updated: 06-Jul-2011
No species priority site assigned.
Accessions: 1 in National Plant Germplasm System.

Common names:

  • crystal-tea   (Source: Dict Gard [as Ledum palustre]) – English
  • marsh-tea   (Source: Websters Dict [as Ledum palustre]) – English
  • wild rosemary   (Source: Krussmann [as Ledum palustre]) – English
  • skvattram   (Source: Vara kulturvaxt namn ) – Swedish

Economic importance:

Distributional range:

    Siberia: Russian Federation - Eastern Siberia, Irkutsk, Krasnoyarsk, Western Siberia, Yakutia-Sakha
    Russian Far East: Russian Federation - Amur, Kamchatka, Khabarovsk, Magadan, Sakhalin
    Eastern Asia: Japan - Hokkaido; Korea, North
    Northern Europe: Finland; Norway; Sweden
    Middle Europe: Austria; Czechoslovakia; Germany; Poland
    East Europe: Belarus; Russian Federation - European part [n.]; Ukraine

  • also cultivated


  • Aldén, B., S. Ryman & M. Hjertson. 2009. Våra kulturväxters namn - ursprung och användning. Formas, Stockholm (Handbook on Swedish cultivated and utility plants, their names and origin).
  • Chamberlain, D. et al. 1996. The genus Rhododendron: its classification and synonymy.
  • Czerepanov, S. K. 1995. Vascular plants of Russia and adjacent states (the former USSR). [= Ledum palustre L.].
  • Harmaja, H. 1990. New names and nomenclatural combinations in Rhododendron (Ericaceae). Ann. Bot. Fenn. 27:203–204.
  • Harmaja, H. 1991. Taxonomic notes on Rhododendron subsection Ledum (Ledum, Ericaceae), with a key to its species. Ann. Bot. Fenn. 28:173.
  • Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening. [= Ledum palustre].
  • Krüssmann, G. 1984. Manual of cultivated broad-leaved trees and shrubs (English translation of Handbuch der Laubgehölze. 1976). [= Ledum palustre].
  • Webster's third new international dictionary. [= Ledum palustre].


Check other web resources for Rhododendron tomentosum Harmaja:

  • Mansfeld: Mansfeld's World Database of Agricultural and Horticultural Crops
  • ICRA: International Cultivar Registration Authority (on-line resource). for Rhododendron tomentosum cultivars
  • ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
  • AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
  • Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.


  • Check for additional images
  • Google Images Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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Cite as:
USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network - (GRIN) [Online Database].
National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: (23 November 2014)

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